Added pci device info, from pcidump, in #openbsd in dev #pinxi, seems to be working.

OpenBSD's pcidump has very little pci data however, less than FreeBSD's pciconf, so I can't match the IF to the PCI NIC as with GNU/Linux and FreeBSD.

But it works. Requires root to run pcidump, which is too bad, will have to add error message for pcidump noting requires root if not root.